Rust CLI that creates/destroys/imports illumos zones from KDL template
configs with automatic IP allocation from named pools. Registry lives
under /etc/zmgr as flat KDL files — zone entries double as the IPAM
ledger. Includes default templates for ipkg (OI) and nlipkg (OFL)
brands, matching the existing shell scripts.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
